obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 78 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/va-arg-22.c b/gcc/testsuite/gcc.c-torture/execute/va-arg-22.c
new file mode 100644
index 000000000..46b8dcbe8
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/va-arg-22.c
@@ -0,0 +1,78 @@
+#include <stdarg.h>
+
+extern void abort (void);
+extern void exit (int);
+
+void bar (int n, int c)
+{
+  static int lastn = -1, lastc = -1;
+
+  if (lastn != n)
+    {
+      if (lastc != lastn)
+	abort ();
+      lastc = 0;
+      lastn = n;
+    }
+
+  if (c != (char) (lastc ^ (n << 3)))
+    abort ();
+  lastc++;
+}
+
+#define D(N) typedef struct { char x[N]; } A##N;
+D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
+D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
+D(16) D(31) D(32) D(35) D(72)
+#undef D
+
+void foo (int size, ...)
+{
+#define D(N) A##N a##N;
+D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
+D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
+D(16) D(31) D(32) D(35) D(72)
+#undef D
+  va_list ap;
+  int i;
+
+  if (size != 21)
+    abort ();
+  va_start (ap, size);
+#define D(N)					\
+  a##N = va_arg (ap, typeof (a##N));		\
+  for (i = 0; i < N; i++)			\
+    bar (N, a##N.x[i]);
+D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
+D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
+D(16) D(31) D(32) D(35) D(72)
+#undef D
+  va_end (ap);
+}
+
+int main (void)
+{
+#define D(N) A##N a##N;
+D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
+D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
+D(16) D(31) D(32) D(35) D(72)
+#undef D
+  int i;
+
+#define D(N)					\
+  for (i = 0; i < N; i++)			\
+    a##N.x[i] = i ^ (N << 3);
+D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
+D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
+D(16) D(31) D(32) D(35) D(72)
+#undef D
+
+  foo (21
+#define D(N) , a##N
+D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
+D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
+D(16) D(31) D(32) D(35) D(72)
+#undef D
+      );
+  exit (0);
+}